diff --git a/ssl/record/rec_layer_s3.c b/ssl/record/rec_layer_s3.c index 980e5a4b8bd366910258e404138ee58c5d3f19a1..d10b91b24f1128263fcc6f4f246b94e143736548 100644 --- a/ssl/record/rec_layer_s3.c +++ b/ssl/record/rec_layer_s3.c @@ -1305,8 +1305,16 @@ int ssl3_read_bytes(SSL *s, int type, int *recvd_type, unsigned char *buf, if (recvd_type != NULL) *recvd_type = SSL3_RECORD_get_type(rr); - if (len == 0) + if (len == 0) { + /* + * Mark a zero length record as read. This ensures multiple calls to + * SSL_read() with a zero length buffer will eventually cause + * SSL_pending() to report data as being available. + */ + if (SSL3_RECORD_get_length(rr) == 0) + SSL3_RECORD_set_read(rr); return 0; + } totalbytes = 0; do {